<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title></title>
		<link rel="stylesheet" type="text/css" href="css/my.css"/>
		<!--内部样式-->
		<style type="text/css">
			.blue{
				color: blue;
				font-size: 70px;
				text-decoration: underline;
			}
			/*h1{
				font-size: 50px;
			}*/
		</style>
	</head>
	<body>
		<!--内嵌样式-->
		<h1 style="color: red;">王老师</h1>
		<h1 class="blue">朱老师</h1>
		<h1 class="yellow">郑老师</h1>
	</body>
</html>
